Represents assigning to a class variable using an operator that isn’t ‘=`.
@@target += value ^^^^^^^^^^^^^^^^^
attr_reader value: Prism::node
attr_reader binary_operator: Symbol
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3870
def initialize(source, name, name_loc, binary_operator_loc, value, binary_operator, location)
@source = source
@location = location
@name = name
@name_loc = name_loc
@binary_operator_loc = binary_operator_loc
@value = value
@binary_operator = binary_operator
end
def initialize: (Symbol name, Location name_loc, Location binary_operator_loc, Prism::node value, Symbol binary_operator, Location location) -> void
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3965
def self.type
:class_variable_operator_write_node
end
Similar to type, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like type, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.
def self.type: () -> Symbol
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3971
def ===(other)
other.is_a?(ClassVariableOperatorWriteNode) &&
(name === other.name) &&
(name_loc.nil? == other.name_loc.nil?) &&
(binary_operator_loc.nil? == other.binary_operator_loc.nil?) &&
(value === other.value) &&
(binary_operator === other.binary_operator)
end
Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3881
def accept(visitor)
visitor.visit_class_variable_operator_write_node(self)
end
def accept: (Visitor visitor) -> void
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3924
def binary_operator_loc
location = @binary_operator_loc
return location if location.is_a?(Location)
@binary_operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
attr_reader binary_operator_loc: Location
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3886
def child_nodes
[value]
end
def child_nodes: () -> Array[nil | Node]
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3896
def comment_targets
[name_loc, binary_operator_loc, value] #: Array[Prism::node | Location]
end
def comment_targets: () -> Array[Node | Location]
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3891
def compact_child_nodes
[value]
end
def compact_child_nodes: () -> Array
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3901
def copy(name: self.name, name_loc: self.name_loc, binary_operator_loc: self.binary_operator_loc, value: self.value, binary_operator: self.binary_operator, location: self.location)
ClassVariableOperatorWriteNode.new(source, name, name_loc, binary_operator_loc, value, binary_operator, location)
end
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3909
def deconstruct_keys(keys)
{ name: name, name_loc: name_loc, binary_operator_loc: binary_operator_loc, value: value, binary_operator: binary_operator, location: location }
end
def deconstruct_keys: (Array keys) -> { name: Symbol, name_loc: Location, binary_operator_loc: Location, value: Prism::node, binary_operator: Symbol, location: Location }
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3937
def inspect
InspectVisitor.compose(self)
end
def inspect -> String
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3917
def name_loc
location = @name_loc
return location if location.is_a?(Location)
@name_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node_ext.rb, line 323
def operator
deprecated("binary_operator")
binary_operator
end
Returns the binary operator used to modify the receiver. This method is deprecated in favor of binary_operator.
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node_ext.rb, line 330
def operator_loc
deprecated("binary_operator_loc")
binary_operator_loc
end
Returns the location of the binary operator used to modify the receiver. This method is deprecated in favor of binary_operator_loc.
# File tmp/rubies/ruby-3.4.0-preview1/lib/prism/node.rb, line 3955
def type
:class_variable_operator_write_node
end
Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling ‘[cls1, cls2].include?(node.class)` or putting the node into a case statement and doing `case node; when cls1; when cls2; end`. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.
Instead, you can call type, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.
def type: () -> Symbol